Indrayani Biotech Limited, together with its subsidiaries, engages in the food and hospitality, dairy, healthcare and pharma, engineering, biotech, agriculture, and infrastructure businesses. It offers catering and food supply services. The company also designs, develops, manufactures, maintains, and services power electronics, including FCBC, battery chargers, modulars, industrial and commercial on-line UPS systems, industrial inverters, AC/DC power supplies, DC-DC converters, servo-controlled voltage stabilizers, and special purpose machines. In addition, it markets and sells microorganisms based bio fertilizers, bio pest controllers, bio fortified vermi compost, and bio fortified coirpith, as well as pseudomonas, beauveria bassiana, metarhizium, potash mobiliser, tricoderma viride, verticillium lecanii, humic acid, bio fortified coirpith compost, bio fortified vermicompost, MN mixture, NP virus, and VAM to farmers; and manufactures milk protein-based products, such as skimmed milk powder, milk protein concentrates, milk whey powder, whey powder and protein concentrates, evaporated milk, whole milk powder, dairy whitener, and casein under the EnNutrica brand. Further, the company operates hospitals and clinics, which provide eye care, multispecialty dental care, cosmetology, skin care, and hair care services. Additionally, it manufactures waste heat recovery systems package boilers, economisers, super heaters, steam drums, deaerator cum feed water storage tankers, blow down systems, dosing systems, heat exchangers, pressure vessels and storage tanks, water-preheaters, and air-preheaters under the IBL MATRIX brand; and produces organic vegetables, fruits, and other grocery products, as well as develops commercial and residential infrastructure projects. The company was incorporated in 1992 and is based in Chennai, India.